# Stack vs ZOVRAH

The clearest difference is device support: Stack at 3 against ZOVRAH's 1. Stack also leads on iOS requirement (15.1 vs 18.0). On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. Stack sells 3 in-app purchases, starting at $3.99 per month and ZOVRAH sells 2 in-app purchases, starting at $15.00 per month. Whichever you choose, the download price is not the number that matters.

Stack ships an update every 6 days, ZOVRAH every 9 days. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | Stack | ZOVRAH |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 6 days** | Every 9 days |
| Size | 62 MB | 40 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPod, Apple Watch** | iPhone |
| Age rating | 4+ | 17+ |
| Developer | [Naveen Senapathi](https://appshunter.io/developer/1889130875) | [ZOVRAH UK LTD](https://appshunter.io/developer/1850163557) |

## What reviewers say

### Stack

[App page](https://appshunter.io/ios/app/stack-routine-tracker/id6761363465)

**Features:** macOS Compatibility, Apple Watch app

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Stack Pro Monthly | $3.99 | per month |
| Stack Pro Annual | $39.99 | per year |
| Stack Pro Lifetime | $79.99 | one-time |


### ZOVRAH

[App page](https://appshunter.io/ios/app/zovrah/id6762258893)

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $15.00 | per month |
| Annual Subscription | $129.00 | per year |


## Frequently asked questions

### Is Stack free?

Stack is free to download, with in-app purchases available.

### Is ZOVRAH free?

ZOVRAH is free to download, with in-app purchases available.

### Do Stack or ZOVRAH have ads?

Neither Stack nor ZOVRAH shows ads.

### Which is updated more often, Stack or ZOVRAH?

Stack ships an update every 6 days, and ZOVRAH every 9 days. Most recently, Stack was updated on October 28, 2026 and ZOVRAH on October 25, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*